@ladyboutwell As others have said video dems are the best way to learn. But some of the illustrated books are helpful, too. Don't get discouraged. You just have to keep practicing.
Sometimes I also bake a cake, make a batch of real frosting instead of the practice kind that you use over and over, and actually pipe the cake and the roses.
Knowing that it's not just "practice" but the real thing that significant other and I are going to eat helps me come closer to the mark.